English verb conjugation
COULD WASSAIL

Regular verb: wassail - wassailed - wassailed

Affirmation

Simple form	V-ing form
I could wassail you could wassail he could wassail we could wassail you could wassail they could wassail	I could be wassailing you could be wassailing he could be wassailing we could be wassailing you could be wassailing they could be wassailing
Perfect	V-ing perfect
I could have wassailed you could have wassailed he could have wassailed we could have wassailed you could have wassailed they could have wassailed	I could have been wassailing you could have been wassailing he could have been wassailing we could have been wassailing you could have been wassailing they could have been wassailing

Negation

Simple form	V-ing form
I could not wassail you could not wassail he could not wassail we could not wassail you could not wassail they could not wassail	I could not be wassailing you could not be wassailing he could not be wassailing we could not be wassailing you could not be wassailing they could not be wassailing
Perfect	V-ing perfect
I could not have wassailed you could not have wassailed he could not have wassailed we could not have wassailed you could not have wassailed they could not have wassailed	I could not have been wassailing you could not have been wassailing he could not have been wassailing we could not have been wassailing you could not have been wassailing they could not have been wassailing

Interrogative form

Simple form	V-ing form
could I wassail? could you wassail? could he wassail? could we wassail? could you wassail? could they wassail?	could I be wassailing? could you be wassailing? could he be wassailing? could we be wassailing? could you be wassailing? could they be wassailing?
Perfect	V-ing perfect
could I have wassailed? could you have wassailed? could he have wassailed? could we have wassailed? could you have wassailed? could they have wassailed?	could I have been wassailing? could you have been wassailing? could he have been wassailing? could we have been wassailing? could you have been wassailing? could they have been wassailing?

Interro-negative form

Simple form	V-ing form
could I not wassail? could you not wassail? could he not wassail? could we not wassail? could you not wassail? could they not wassail?	could I not be wassailing? could you not be wassailing? could he not be wassailing? could we not be wassailing? could you not be wassailing? could they not be wassailing?
Perfect	V-ing perfect
could I not have wassailed? could you not have wassailed? could he not have wassailed? could we not have wassailed? could you not have wassailed? could they not have wassailed?	could I not have been wassailing? could you not have been wassailing? could he not have been wassailing? could we not have been wassailing? could you not have been wassailing? could they not have been wassailing?